发明名称 |
AROMATIC POLYCARBONATE, OPTICAL DISK SUBSTRATE AND OPTICAL DISK PREPARED BY USING THE SAME, AND PRODUCTION METHOD FOR AROMATIC POLYCARBONATE |
摘要 |
PROBLEM TO BE SOLVED: To obtain an aromatic polycarbonate which gives an optical disk substrate having an improved static electricity resistance and a good coatability with a colorant; to provide an optical disk substrate and an optical disk prepared by using the same; and a production method for an aromatic polycarbonate. SOLUTION: The polycarbonate is prepared by the transesterification of an aromatic dihydroxy compound and a carbonic diester and has a terminal hydroxyl group content (based on the total hydroxyl group content) of 2-25 mol% and a specific terminal group content (based on the total terminal group content) of 20 mol% or higher. The aromatic polycarbonate provides an optical disk substrate and an optical disk. In the production method for an aromatic polycarbonate, a specific phenol or a specific carbonic diester is added when the intrinsic viscosity [η] of an aromatic polycarbonate polymer is lower than 0.2 dl/g. |
申请公布号 |
JP2002332342(A) |
申请公布日期 |
2002.11.22 |
申请号 |
JP20010291373 |
申请日期 |
2001.09.25 |
申请人 |
MITSUBISHI CHEMICALS CORP |
发明人 |
MIYAMOTO MASAAKI;TAYAMA TAKAO |
分类号 |
C08G64/30;G11B7/24;G11B7/253 |
主分类号 |
C08G64/30 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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